Likely pure silk, I believe it's from the Showa era. I bought it because I liked the pattern and have kept it stored since. ④ Photo. There's a small line? on the back of the collar. I'm selling it to organize my chest of drawers. Sleeve length: approximately 61cm. Length: approximately 78.5cm. When I, who am 157cm tall, tried it on, it came to about 3cm above my knees.